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vendor/react/promise/tests/RejectedPromiseTest.php

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+<?php
+
+namespace React\Promise;
+
+use React\Promise\PromiseAdapter\CallbackPromiseAdapter;
+
+class RejectedPromiseTest extends TestCase
+{
+    use PromiseTest\PromiseSettledTestTrait,
+        PromiseTest\PromiseRejectedTestTrait;
+
+    public function getPromiseTestAdapter(callable $canceller = null)
+    {
+        $promise = null;
+
+        return new CallbackPromiseAdapter([
+            'promise' => function () use (&$promise) {
+                if (!$promise) {
+                    throw new \LogicException('RejectedPromise must be rejected before obtaining the promise');
+                }
+
+                return $promise;
+            },
+            'resolve' => function () {
+                throw new \LogicException('You cannot call resolve() for React\Promise\RejectedPromise');
+            },
+            'reject' => function ($reason = null) use (&$promise) {
+                if (!$promise) {
+                    $promise = new RejectedPromise($reason);
+                }
+            },
+            'notify' => function () {
+                // no-op
+            },
+            'settle' => function ($reason = null) use (&$promise) {
+                if (!$promise) {
+                    $promise = new RejectedPromise($reason);
+                }
+            },
+        ]);
+    }
+
+    /** @test */
+    public function shouldThrowExceptionIfConstructedWithAPromise()
+    {
+        $this->setExpectedException('\InvalidArgumentException');
+
+        return new RejectedPromise(new RejectedPromise());
+    }
+
+    /** @test */
+    public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToRejectedPromiseWithAlwaysFollowers()
+    {
+        gc_collect_cycles();
+        $promise = new RejectedPromise(1);
+        $promise->always(function () {
+            throw new \RuntimeException();
+        });
+        unset($promise);
+
+        $this->assertSame(0, gc_collect_cycles());
+    }
+
+    /** @test */
+    public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToRejectedPromiseWithThenFollowers()
+    {
+        gc_collect_cycles();
+        $promise = new RejectedPromise(1);
+        $promise = $promise->then(null, function () {
+            throw new \RuntimeException();
+        });
+        unset($promise);
+
+        $this->assertSame(0, gc_collect_cycles());
+    }
+}